The pilot asked all the passengers on board to remain _____ as the plane was making a landing.
| A．seat | B．seating | C．seated | D．to be seating |
We live in a society ______ there is a great deal of debate about competition.
| A．where | B．which |
| C．when | D．that |
The fact ____ ancient Greek civilization had a great influence on Western culture is known to many people.
| A．whether | B．that |
| C．if | D．how |
---_______ the farmers discovered the entrance to the secret cave in the valley?
--- Totally by chance.
| A．When was it | B．How was it |
| C．How was it that | D．When was it that |
__________ he does has nothing to do with me.
| A．If | B．No matter what |
| C．That | D．whatever |
Mr White is opposed to repairing the old building, and that’s ______ I don’t agree.
| A．which | B．that |
| C．where | D．what |